Coil-winding machine



` W. H. PUTTEN COIL WINDINC: MACHINE Filed D66. 27, 1923 Patented Uct. 19, 1926.

UNTTED STATES PATENT oEFlcE.

WILLIAM-HENR`Y POTTER, F CHICAGO, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORPORATED, 0FNEWAYORK, N. Y., A CORPORATION 0F YORK.

COIL-WINDING MACHINE.

Application filed December 27, 1923. Serial No. 682,853.

rlihis invention relates to coil winding machines, and more particularly to an improved machine for winding strand Vmaterial on ring shaped objects, especially toroidal coils.

In the present type of toroidal coil winding machines a supply of winding material is wound on a bobbin which forms a part of, or is made integral with thev winding "10 ring or shuttle. By reversing the revolving direction of the shuttle, the winding mate-' rial is then drawn from the bobbin and wound on the coil. rllhis operation is continued until the coil is completely wound.

Due to the`faet that. the winding ring or shuttle .of the above type of machines passes through the center of the coil as the same is being wound, the ca acity of the bobbin is necessarily small an therefore only a rela'- tively small amount of winding material can be stored thereon. For thisreason the operation of the machine must be suspended at frequent intervals to permit rewinding of the An object of this invention is to eliminate the time required to wind and rewind the bobbin on the present type of toroida-fl coil winding machines and thereby increase their production. l'

Another object of this invention is to construct a toroidal coil winding machine having a removable bobbin or supply spool lying wholly within the shuttle.

A further object of this invention is to.

N construct a toroidal coil winding machine in which the supply spool is stationary during the winding operation, said supply spool having a flyer revolvably mounted at one end thereof by means of which thewinding ma- 40 terial is drawn therefrom.

'A- still further object of this invention is to construct a coil winding machine with an improved tensioning device for taking up the slack in the winding material as the same is being drawn from the supply spool and Wound on the coil.'

' Other objects and advantages of the present invention will more fully appear` from the following description and will be particularly'pointed out in the appended claims.

In the accompanying drawings,

Fig. 1 is a side elevation, partly lin section of a wlndmg machme made in accordance with the mvention;

Fig. 2 is a front elevation 0f the mechanisnz shcwn in Fig. 1;

Fig. 3 is a fragmentary detail view of the removable bobbin, and

similar constructed parallel side frame members 10 and 11 respectively, which are integrally or otherwise rigidly connected one to another at their lower ends by a cross frame member 12, which in turn is rigidly supported on a flat surface 13, such as the top of a table or bench. Journaled in lower arms 14n and 15 of the vframe lmembers 10 and. 11 respectively, is a driving pinion 16 which may be driven by any suitable source of power, such as an electric motor 17 and hand wheel 18.

A winding ring or shuttle 19 comprising two separate ring shaped members 2O and 21 are rigidly connected to eachother by screws 22. (Fig. 4) The member 20 of the shuttle is provided on its periphery with gear teeth 45 suitable to'be engagedby the teeth of the driving pinion 16. An idler'v gear 24 is journaled in upper arms 25 and 96 of the frame members 10 and 11 respectively, said gear being similar in size and construction to the driving pinion 16. Journaled in the lower portion of? the frame members 10 andV 11 is an idler roller 27 which serves as a support and guide for the winding ring 19. f

A bobbin 28 containing a supply of winding material 29 lies wholly Within the shuttle 19, and is securely held in place by means of an outwardly projecting lug 30 formed on its end flange 31' fittingsnugly in a groove 32 in the shuttle member 21. On

38 to the object on which the material is lto be wound, illustrated in the drawings 'as a coil '39.

To permit the bobbin 28 to be replaced .when the supply of winding material has run out, there is an opening in the shuttle member 20, which is suitably covered when the machine is in operation, as by a removable plate 40, Fig. 4.

A hinged section 49 is provided in the shuttle 19 to permit the opening thereof for the insertion or removal of the coil or object to be wound.

As the coil 39 is being wound with material supplied by the bobbin 28, it is firmly supported and held in position by a bracket 41 journaled on a stud 42 projecting through the top of the support 13. A gear 43 is also journaled on the stud 42 and is rigidly secured to the bracket 41 so that it is rotatable therewith. A stud 44 is revolvably mounted in a bearing 46 and has keyed thereto a ratchet wheel 47 and a gear 48 which meshes with the gear 43. A suitablehand lever (not shown) is4 provided for indeXing the ratchet Wheel 47, irst in one direction and then in the other so that the coil may be oscillated in an are ot about 180 degrees as the winding material is applied thereon.

The mechanism above described and illustrated in the drawings is used for winding that type of toroidal coils which arev composed ot two or more separate and distinct sections, each section being wound separately. Other suitable mechanism may be employed for revolving the coil uniformly in one direction when it is desired to apply the winding material thereon in Well defined layers.

The pinion 16 is driven by any suitable source of power, such as an electric motor 17, causing the shuttle 19 to revolve in a clockwise direction as shown by the -arrows in Fig. 1. While the shuttle 19 is revolving, the winding material 29 is drawn from the bobbin 28 through the eye 35 in the flier 34 and led over the guide roller 36 to the tensioning device 37, from which it passes through the distributing roller 38 to the coil 39. I

It is apparent from an inspection of Fig. 1 that while the shuttle 19 is revolving, during the first half of each revolution starting from the position shown, the Winding material is drawn from the bobbin faster than it is being wound on the coil, while during the other half of each revolution, the amount ot material wound on the coilis more than is being drawn from the bobbin, thus causing first a slack and then ay tightening up of the winding material. This condition is due to the fact that the coil 3S) is not positioned at the center of the shuttle 19. To maintain a uniform tension ot the winding material during the complete winding' operation, the spring pressed tensioning de4 vice 37 rotates back and forth in the are 50, assuming the position shown to take up the slack in the material caused in the first halt of each revolution and assuming the dot- Vted position to prevent tightening up ot' the winding material in the second half of each revolution.

What is claimed is:

1. In a machine for winding strand material around a ring shaped object, a shuttle, a bobbin carried thereby, and a rotatable member carried by said bobbin for guiding the strand material as it is withdrawn therefrom.

' 2. In a machine for winding strand material around a ring shaped object, a shuttle, a bobbin carried thereby, means for supporting said bobbin in a fixed position with respect to said shuttle, and a rotatablemember carried at one end ot said bobbin for guiding the strand material as it is withdrawn therefrom.

3. In a machine for winding strand material around a ring shaped object. a shuttle, a bobbin carried thereby, means for causing a relative movement between the object being wound and said shuttle whereby material is withdrawn from the bobbin and applied oii the object being wound, and a rotatable member carried at one end of said bobbin for guiding the strand material as it is withdrawn therefrom.

4. In a machine tor winding strand material around a ring shaped object. a shuttle, a bobbin carried thereby, means for supporting said bobbin in a fixed position with respect to said shuttle, means for causing a relative movement between the object being wound and said shuttle whereby material is withdrawn from the bobbin and applied on the object being wound, and a rotatable member carried at one end of said bobbin for guiding the material as it is withdrawn therefrom.

5. In a machine for winding strand material around a ring-shaped object, a revolving shuttle. a bobbin carried thereby. and a iier for withdrawing strand material from said bobbin.

6. In a machine for winding strand material around a ring-shaped object, a revolving shuttle. a removable bobbin carried thereby. and a Hier carried by said shuttle lfor feeding strand material from said bob- 7. In a machine for winding strand material around a ring-shaped obiect, a revolving shuttle, a removable bobbin carried thereby, a flier carried by said shuttle for feeding strand material from said bobbin, and means tor maintaining a uniform tension on said strand material during the windlng operation.

8. In a machine for winding strand material around a ring-shaped object, a revolving shuttle. a removable bobbin lying wholly within said shuttle, a supportv for said ringshaped object, and means tor oscillating said support during the winding operation.

9. In a machine for winding strand material around a ring-shaped obiect, a revolving shuttle, a removable bobbin lying Wholly Within said shuttle means for passing the strand material from said bobbin to said object, a support for said ring-shaped` vmeans for said Winding material, and means for maintaining a uniform tenslon 1n saldI winding material during the Winding operation.

11. In a machine for Winding toroidal coils, a revolving shuttle, a removable bobbin lying Wholly Within said shuttle, means for passing the Winding material from said b A ing shuttle, and an arcuate. shaped bobbin carried by said shuttle.

13. In a machlne for winding strand material around a. ring-shaped object, arevolving shuttle, and an arcuate shaped bobbin removably carried by said shuttle. 14. In a machine for winding strand material around a ring-shaped object, a -revolving shuttle, an arcuate shaped bobbin lylng wholly Within said shuttle, and means for distributing the strand material on said ring-shaped object. 15, In a machine for Winding toroidal coils, a, revolving shuttle, .an arcuate shaped bobbin lying Wholly Within said shuttle, a disk revolvably mounted at one end of said bobbin, an opening in said disk through 'which the winding material is drawn from said bobbin, and means for distributing said Winding material on said toroidal coil.

16. In a machine for Winding toroidal coils, a revolving shuttle, an arcuate shaped bobbin lyihg Wholly within said shuttle, a disk revolvably mounted at one end of said obbin, an opening` in said disk through which the winding material is drawn from said bobbin, and tensioning means for said vwinding material, comprising a roller supported by a spring pressed arm pivoted Within said shuttle.

In witnesswhereof, I hereunto subscribe my name this 18 day of December A. D., 1923.

WILLIAM HENRY PT'IER. 

